While flying over Kaon, the Seekers spotted Grimlock brooding over his new commander's decision to evacuate Cybertron. Believing that Grimlock was a natural born killer, the Air Commander gave Grimlock their whole mission profile to attack Sector Zero-Six and offered him a choice: warn the command post, or help them destroy it and rejoin the Decepticons. Taking off, the Seekers proceeded to Sector Zero-Six, but found the command post empty, along with the mainframe wiped and all tactical data rerouted. Grimlock contacted the Seekers, giving them a message: "Me not like Optimus Prime and Autobots that much...but me like you and yours even less!" With that, a bomb Grimlock had placed exploded. Skywarp barely managed to warp them out in time. The War Within Preview

With no one to blame but himself, Starscream went on a (surprisingly well founded) rant about Megatron's sadism, saying it was all Megatron's fault. Guess who Skywarp and Thundercracker blamed. Go on, take a guess. The War Within, part 3